CN109150479B

CN109150479B - Communication method and device

Info

Publication number: CN109150479B
Application number: CN201710911571.4A
Authority: CN
Inventors: 李新县; 唐浩; 唐臻飞; 汪凡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-06-16
Filing date: 2017-09-29
Publication date: 2023-06-06
Anticipated expiration: 2037-09-29
Also published as: CN109150479A; EP3609251A1; EP3609251A4

Abstract

The application discloses a communication method and device. The method comprises the following steps: the network equipment sends indication information to the terminal, wherein the indication information is used for indicating at least one second BP associated with the first BP; the network device signals the terminal on the first BP and at least one second BP. Therefore, the network equipment indicates at least one second BP (back propagation) associated with the first BP through the indication information, so that the network equipment and the terminal can perform signal transmission on the associated BP, and the number of the second BP associated with the first BP can be multiple, and the utilization rate of spectrum resources can be effectively improved.

Description

Communication method and device

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a communication method and apparatus.

Background

In a wireless communication system, a terminal and a network transmit data to each other based on a radio (radio) communication technology. However, before transmitting data, the terminal typically needs to access the network and establish a connection with the network.

Without loss of generality, the connection between the terminal and the network may be abbreviated as link. The two endpoints of a link are respectively used for characterizing two devices for transmitting and receiving data. An endpoint represents a device, such as a terminal, that enjoys network services; another means a device providing network services, such as a base station. The connection between these two endpoints is used to characterize the path of the data transmission. The links are further divided into Uplink (UL) and Downlink (DL) according to the direction of data transmission.

The uplink and downlink between the terminal and the network are not necessary for transmitting data to each other. And, in order to ensure the validity and reliability of data transmission, the uplink and the downlink also need to cooperate with each other. Taking data retransmission as an example, the terminal receives data in a downlink, if detecting that the data transmission fails, the terminal needs to feed back that the transmission state of the data is failed in an uplink matched with the downlink, so as to trigger the base station to retransmit the data. Accordingly, after the base station transmits data in the downlink, it is also necessary to monitor feedback of the terminal in the uplink coordinated with the downlink. This coordination between the uplink and downlink is typically long-term and fixed, also known as paired or coupled. In this case, the connection between the terminal and the network is understood as an uplink and a downlink paired with each other.

In the New Radio (NR) system of 5G in question, the maximum bandwidth of one carrier may be up to 400MHz, but the maximum bandwidth capability supported by the terminal may not be up to such a large bandwidth. When the terminal does not support the Bandwidth capability of one carrier, the base station cannot directly allocate resources to the terminal within the range of the carrier Bandwidth, as in the long term evolution (Long Term Evolution, LTE) system, but configures one or more Bandwidth Parts (BP) for the terminal within the carrier, and then allocates resources to the terminal within the range of the BP. In NR, a base station may configure multiple uplink BPs and multiple downlink BPs for a terminal, and when data transmission is required, the base station activates some or all of the uplink BPs configured for the terminal and activates some or all of the downlink BPs configured for the terminal, so as to perform data transmission on the activated uplink BPs and downlink BPs.

Disclosure of Invention

The application provides a communication method which is used for solving the problem that uplink BP and downlink BP are associated with each other.

In a first aspect, the present application provides a communication method, including:

the network equipment sends indication information to the terminal, wherein the indication information is used for indicating at least one second BP (back propagation) associated with the first BP;

the network device signals the terminal on the first BP and the at least one second BP.

In this way, the network device indicates at least one second BP associated with the first BP through the indication information, so that the network device and the terminal can perform signal transmission on the BP associated with each other, and the number of the second BP associated with the first BP can be multiple, thereby effectively improving the spectrum resource utilization rate.

In one possible design, the first BP is a downstream BP and the second BP is an upstream BP;

the network device sends the indication information to a terminal, including:

the network device sends the indication information to the terminal on the first BP.

the network device performs signal transmission with the terminal on the first BP and the at least one second BP, including:

And the network equipment receives uplink data sent by the terminal on the at least one second BP corresponding to the uplink scheduling grant in the first BP.

In one possible design, the first BP is an upstream BP and the second BP is a downstream BP;

the network equipment receives at least one piece of HARQ feedback information sent by the terminal on the first BP, wherein the HARQ feedback information corresponds to at least one piece of HARQ of the second BP.

In one possible design, the first BP is a downstream BP and the second BP is an upstream BP; or, the first BP is an uplink BP, and the second BP is a downlink BP.

In one possible design, the first BP and the at least one second BP belong to the same cell.

In one possible design, the method is applied at least in TDD and FDD systems.

the method further comprises the steps of:

the network equipment receives SRS sent by the terminal on an uplink measurement BP; the uplink measurement BP is obtained according to the at least one second BP;

And the network equipment obtains the channel quality of the first BP according to the SRS.

In a second aspect, the present application provides a communication method, including:

the terminal receives indication information sent by the network equipment, wherein the indication information is used for indicating at least one second BP (back propagation) associated with the first BP;

the terminal signals the network device on the first BP and the at least one second BP.

the terminal receiving the indication information sent by the network equipment comprises:

and the terminal receives the indication information sent by the network equipment on the first BP.

the terminal performs signal transmission with the network device on the first BP and the at least one second BP, including:

and the terminal sends uplink data to the network equipment on the at least one second BP corresponding to the uplink scheduling grant in the first BP.

And the terminal sends at least one HARQ feedback information to the network equipment on the first BP, wherein the HARQ feedback information corresponds to the HARQ of at least one second BP.

In one possible design, the method is applied at least in time division duplex, TDD, and frequency division duplex, FDD, systems.

the method further comprises the steps of:

the terminal transmits SRS on the uplink measurement BP; the uplink measurement BP is derived from the at least one second BP.

The application also provides a communication method, which comprises the following steps:

the terminal receives configuration information from network equipment, wherein the configuration information is used for configuring a first frequency domain resource and a frequency domain resource associated with the first frequency domain resource; the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource have the same center frequency point, and the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource are in different transmission directions;

And the terminal determines the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource according to the configuration information.

In one possible design, the method further comprises:

the terminal receives first indication information from the network equipment, wherein the first indication information is used for indicating to activate the first frequency domain resource;

and the terminal activates the first frequency domain resource according to the first indication information.

In one possible design, after the terminal receives the first indication information from the network device, the method further includes:

the terminal deactivates a third frequency domain resource;

the third frequency domain resource and the first frequency domain resource are in the same transmission direction, and the third frequency domain resource and the first frequency domain resource have the same center frequency point.

the terminal activates the frequency domain resource associated with the first frequency domain resource, and deactivates the third frequency domain resource and the fourth frequency domain resource;

the third frequency domain resource and the first frequency domain resource are in the same transmission direction, and the third frequency domain resource and the first frequency domain resource have different center frequency points;

The third frequency domain resource and the fourth frequency domain resource are in different transmission directions, and the third frequency domain resource and the fourth frequency domain resource have the same center frequency point.

In one possible design, the frequency domain resource associated with the first frequency domain resource is a plurality of frequency domain resources;

the terminal activates the frequency domain resource associated with the first frequency domain resource, including:

the terminal receives second indication information sent by the network equipment, wherein the second indication information is used for indicating to activate second frequency domain resources, and the second frequency domain resources are any frequency domain resources associated with the first frequency domain resources;

and the terminal activates the second frequency domain resource according to the second indication information.

In one possible design, the method further comprises:

and the terminal activates the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource according to the configuration information.

generating configuration information by the network equipment;

the network equipment sends the configuration information to a terminal, wherein the configuration information is used for configuring a first frequency domain resource and a frequency domain resource associated with the first frequency domain resource; the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource have the same center frequency point, and the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource are in different transmission directions.

In one possible design, the method further comprises:

the network device sends first indication information to the terminal, wherein the first indication information is used for indicating to activate the first frequency domain resource.

the method further comprises the steps of:

the network device sends second indication information to the terminal, wherein the second indication information is used for indicating to activate a second frequency domain resource, and the second frequency domain resource is any frequency domain resource in the frequency domain resources associated with the first frequency domain resource.

the terminal receives configuration information from network equipment, wherein the configuration information is used for configuring at least one frequency domain resource and any frequency domain resource associated with the at least one frequency domain resource; the frequency domain resources associated with any frequency domain resource have the same center frequency point, and the frequency domain resources associated with any frequency domain resource and any frequency domain resource are in different transmission directions;

and the terminal determines the at least one frequency domain resource and any frequency domain resource associated with the at least one frequency domain resource according to the configuration information.

In one possible design, the method further comprises:

the terminal receives first indication information from the network equipment, wherein the first indication information is used for indicating to activate a first frequency domain resource; the first frequency domain resource is any frequency domain resource in the at least one frequency domain resource;

the terminal deactivates a third frequency domain resource;

In one possible design, the method further comprises:

the terminal activates the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource according to the configuration information; the first frequency domain resource is any one of the at least one frequency domain resource.

generating configuration information by the network equipment;

the network equipment sends the configuration information to a terminal, wherein the configuration information is used for configuring at least one frequency domain resource and any frequency domain resource associated with the at least one frequency domain resource; the frequency domain resources associated with any frequency domain resource and any frequency domain resource have the same center frequency point, and the frequency domain resources associated with any frequency domain resource and any frequency domain resource are in different transmission directions.

In one possible design, the method further comprises:

the network equipment sends first indication information to the terminal, wherein the first indication information is used for indicating to activate the first frequency domain resource; the first frequency domain resource is any one of the at least one frequency domain resource.

the method further comprises the steps of:

the network equipment sends second indication information to the terminal, wherein the second indication information is used for indicating to activate second frequency domain resources, and the second frequency domain resources are any frequency domain resources associated with the first frequency domain resources;

the terminal receives third indication information from the network equipment, wherein the third indication information is used for indicating to activate a first frequency domain resource pair, and the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related;

and the terminal activates the first frequency domain resource pair according to the third indication information.

In one possible design, before the terminal receives the third indication information from the network device, the method further includes:

The terminal receives configuration information from the network equipment, wherein the configuration information is used for configuring at least one frequency domain resource pair; the first frequency domain resource pair is any one or a plurality of frequency domain resource pairs in the at least one frequency domain resource pair;

and the terminal determines the at least one frequency domain resource pair according to the configuration information.

In one possible design, after the terminal receives the third indication information from the network device, the method further includes:

the terminal deactivates a second frequency domain resource pair; the second pair of frequency domain resources is an activated pair of frequency domain resources of the at least one pair of frequency domain resources other than the first pair of frequency domain resources.

In one possible design, the third indication information includes an identification of the first frequency domain resource pair.

In one possible design, the frequency domain resources in the first pair of frequency domain resources have the same center frequency point.

the network equipment generates third indication information, wherein the third indication information is used for indicating to activate a first frequency domain resource pair, and the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related;

And the network equipment sends the third indication information to the terminal.

In one possible design, the method further comprises:

the network equipment sends configuration information to a terminal, wherein the configuration information is used for configuring at least one frequency domain resource pair; the first frequency domain resource pair is any one or a plurality of frequency domain resource pairs in the at least one frequency domain resource pair.

In a third aspect, the present application provides a communication apparatus, which may be a network device or a chip inside the network device, and the communication apparatus has a function of implementing the method example of the first aspect. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or the software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the communication device includes a sending module, a receiving module, and a processing module, where these modules may perform the corresponding functions in the examples of the first aspect described above, specifically:

Transmitting indication information to a terminal, wherein the indication information is used for indicating at least one second BP associated with the first BP;

and transmitting signals with the terminal on the first BP and the at least one second BP.

In a fourth aspect, the present application provides a communication device, which may be a terminal or a chip inside the terminal, and the communication device has a function of implementing the method example of the second aspect. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or the software includes one or more modules corresponding to the functions described above.

receiving indication information sent by network equipment, wherein the indication information is used for indicating at least one second BP (back propagation) associated with a first BP;

signaling with the network device is performed on the first BP and the at least one second BP.

The present application provides a communication device, which may be a terminal or a chip inside the terminal, and which has a function of implementing the above method example. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or the software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the communication device includes a sending module, a receiving module, and a processing module, where these modules may perform the corresponding functions in the above method examples, specifically:

receiving third indication information from the network device, wherein the third indication information is used for indicating activation of a first frequency domain resource pair, and the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related; and activating the first frequency domain resource pair according to the third indication information.

The present application also provides a communication apparatus, which may be a network device or a chip inside the network device, and the communication apparatus has a function of implementing the above method example. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or the software includes one or more modules corresponding to the functions described above.

In one possible design, the structure of the communication device includes a sending module, a receiving module, and a processing module, where these modules may perform the corresponding functions in the above method examples, specifically: generating third indication information, wherein the third indication information is used for indicating activation of a first frequency domain resource pair, and the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related; and sending the third indication information to the terminal.

In a fifth aspect, the present application provides a communication apparatus, which may be a network device, or may be a chip inside the network device, where the communication apparatus has a function of implementing the method example of the first aspect; the communication device includes: a communication module, a processor;

the communication module is used for communication interaction with other devices, in particular, is used for sending indication information to the terminal, wherein the indication information is used for indicating at least one second BP associated with the first BP; and transmitting signals with the terminal on the first BP and the at least one second BP.

The communication module may be an RF circuit, a WiFi module, a communication interface, a bluetooth module, etc.

The processor, configured to implement the functions of the processing module in the third aspect, may include, for example: and determining the indication information.

Optionally, the communication device may further include: the memory is used for storing programs and the like. In particular, the program may comprise program code comprising instructions. The memory may comprise RAM or may further comprise non-volatile memory (non-volatile memory), such as at least one disk memory. The processor executes the application program stored in the memory to realize the functions.

In one possible way, the communication module, the processor and the memory may be interconnected by means of said bus; the bus may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The buses may be classified as address buses, data buses, control buses, etc.

In a sixth aspect, the present application provides a communication apparatus, which may be a network device or may be a chip inside the network device, where the communication apparatus has a function of implementing the method example of the second aspect; the communication device includes: a communication module;

the communication module is used for communication interaction with other devices, and particularly is used for receiving indication information sent by the network device, wherein the indication information is used for indicating at least one second BP (back propagation) associated with the first BP; and signaling with the network device on the first BP and the at least one second BP.

The processor, configured to implement the functions of the processing module in the fourth aspect, may include, for example: and analyzing the indication information.

The present application also provides a computer readable storage medium storing instructions that, when executed on a computer, cause the computer to implement a communication method for performing any one of the designs described above.

The present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the communication method provided by any of the designs described above.

The present application also provides a computer program which, when run on a computer, causes the computer to perform the communication method provided by any one of the designs described above.

Drawings

FIG. 1 is a schematic diagram of a system architecture applicable to the present application;

fig. 2 is a flow chart corresponding to a communication method according to a first embodiment of the present application;

fig. 3 is an overall flow diagram of a communication method provided in the present application;

FIG. 4a is a schematic diagram of a first possible numbering scheme corresponding to the scheme;

FIG. 4b is a schematic diagram of a second possible numbering scheme;

FIG. 4c is a first possible numbering scheme corresponding to mode two;

FIG. 4d is a second possible numbering scheme corresponding to mode II;

fig. 5a is a schematic diagram of an extended uplink BP in the first case;

fig. 5b is a schematic diagram of an extended uplink BP in the second case;

fig. 6 is a schematic diagram of a frequency domain resource with coincidence between an uplink measurement BP and an uplink BP 3;

fig. 7 is an overall flow diagram of a communication method provided in the present application;

FIG. 8 is a flow chart corresponding to the first embodiment of the present application;

FIG. 9 is a flow chart corresponding to a second embodiment of the present application;

fig. 10 is a flow chart corresponding to a communication method according to a third embodiment of the present application;

Fig. 11 is a schematic diagram of a possible complete flow of the communication method according to the third embodiment of the present application;

fig. 12 is a schematic structural diagram of a first communication device provided in the present application;

fig. 13 is a schematic structural diagram of a second communication device provided in the present application;

fig. 14 is a schematic structural diagram of a third communication device provided in the present application;

fig. 15 is a schematic structural diagram of a fourth communication device provided in the present application.

Detailed Description

The present application is described in detail below with reference to the drawings attached to the specification.

The communication method in the present application is applicable to various system architectures. Fig. 1 is a schematic diagram of a system architecture suitable for the application. As shown in fig. 1, the system architecture includes a network device 101 and one or more terminals, such as a first terminal 1021, a second terminal 1022, and a third terminal 1023 shown in fig. 1. The network device 101 may communicate with any one of the first terminal 1021, the second terminal 1022, and the third terminal 1023 through a network.

In this application, the network device may be a Base Station (BS). Base station equipment, which may also be referred to as a base station, refers to equipment in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. For example, a device providing base station functionality in a long term evolution (Long Term Evolution, LTE) system is an evolved base station; the apparatus for providing base station functionality in an NR system includes one or more of: new Radio node B (gNB), centralized Unit (CU), distributed Unit (Distributed Unit); in a wireless local area network (Wireless Local Area Networks, WLAN), a device providing a base station function is an Access Point (AP).

The terminal may be a wireless terminal or a wired terminal. A wireless terminal may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. The wireless terminals may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. A wireless Terminal may also be referred to as a system, subscriber Unit (SU), subscriber Station (Subscriber Station, SS), mobile Station (MB), mobile Station (Mobile), remote Station (RS), access Point (AP), remote Terminal (RT), access Terminal (AT), user Terminal (UT), user Agent (UA), terminal Device (UD), or User Equipment (UE).

In the prior art, when multi-carrier aggregation is performed, a terminal takes an accessed downlink carrier as a main carrier, and then adds an auxiliary carrier through radio resource control (Radio Resource Control, RRC) signaling. For TDD, when one downlink carrier is added, the frequency domain position of the corresponding uplink carrier is the same as the frequency domain position of the downlink carrier; for FDD, when a downlink carrier is added, a corresponding uplink carrier is configured through signaling. It can be known from the prior art that each uplink carrier is paired with one downlink carrier, so that the paired uplink carriers and downlink carriers can be associated with each other when data transmission is performed.

In the NR system, when the network device configures an uplink BP and a downlink BP for the terminal and needs to perform data transmission, the base station activates part or all of the uplink BP configured for the terminal and activates part or all of the downlink BP configured for the terminal, so as to perform data transmission on at least one activated uplink BP and at least one downlink BP.

Example 1

An embodiment of the present application provides a communication method, which is used for solving the problem that an uplink BP and a downlink BP are associated with each other. The method comprises the following steps: the network equipment sends indication information to the terminal, wherein the indication information is used for indicating at least one second BP (back propagation) associated with the first BP, correspondingly, the terminal receives the indication information sent by the network equipment, and the network equipment performs signal transmission with the terminal on the first BP and the at least one second BP.

There are various implementations of the network device sending the indication information to the terminal, for example, the indication information may be carried by signaling or message, for example, the network device may send the indication information through radio resource control (Radio Resource Control, RRC) signaling or downlink control information (Downlink Control Information, DCI) or medium access control layer control unit (Media Access Control Control Element, MAC CE). The indication information may include information that uniquely identifies the uplink BP.

In the application, the indication information may be used to indicate the correspondence between the uplink BP and the downlink BP and/or activation of the uplink BP and the downlink BP.

The uplink BP and the downlink BP referred to in this application correspond to each other, that is, are equivalent to the association or cooperation of the uplink BP and the downlink BP.

In this application, in a first possible implementation manner, the first BP is a downstream BP, and the second BP is an upstream BP; or, the first BP is an uplink BP, and the second BP is a downlink BP. The network device may send indication information to the terminal on a common bandwidth part (common BP), in which case the indication information is used to indicate the correspondence between the uplink BP and the downlink BP and/or the activation of the uplink and downlink BP.

In a second possible implementation manner, the first BP is a downlink BP, the second BP is an uplink BP, and the network device may send, at the first BP, indication information to the terminal, where the indication information is used to indicate the uplink BP, and the uplink BP indicated in the indication information is the uplink BP associated with the first BP.

A second possible implementation is specifically described below with reference to fig. 2, where, as shown in fig. 2, the implementation includes:

in step 201, indication information is sent to the terminal on the first downlink bandwidth portion BP, where the indication information is used to indicate the uplink BP.

Here, the first downlink BP is any one of the downlink BPs activated by the network device for the terminal.

The uplink BP indicated by the indication information is any uplink BP in the uplink BP activated by the terminal equipment, and the uplink BP is the uplink BP associated with the first downlink BP.

Correspondingly, the terminal equipment receives the indication information sent by the network equipment on the first downlink BP.

After receiving the indication information, the terminal equipment can determine the uplink BP indicated by the indication information by analyzing the indication information.

Step 202, according to the indication information, sending an uplink signal at the uplink BP.

Here, the terminal device determines the uplink BP indicated by the indication information, and may send an uplink signal on the uplink BP, where the uplink signal may be a listening reference signal (Sounding Reference Signal, SRS) signal, or may be any one or any combination of uplink scheduling data transmitted in a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat request Acknowledge, HARQ ACK) transmitted in a physical uplink control channel (Physical Uplink Control Channel, PUCCH).

Correspondingly, the network equipment side receives an uplink signal sent by the terminal on the uplink BP.

It should be noted that, step 201 may be implemented by a network device or a chip inside the network device, and step 202 may be implemented by a communication device, which may be a terminal or a chip inside the terminal. It can be understood that when the communication device is a chip inside the terminal, the communication device may also be processed by other modules inside the terminal, such as frequency conversion processing of a radio frequency module, before receiving or transmitting information.

Fig. 3 is an overall flow chart of a communication method provided in the present application, and the communication method in the present application is specifically described with reference to fig. 3, where, as shown in fig. 3, the method includes:

in step 301, the network device obtains the maximum bandwidth capability supported by the terminal, and configures at least one uplink BP and at least one downlink BP for the terminal according to the maximum bandwidth capability supported by the terminal.

Specifically, the network device may obtain the maximum bandwidth capability supported by the terminal in various manners, for example, the network device may obtain the maximum bandwidth capability supported by the terminal according to the information reported by the terminal.

When the network device configures uplink BP and downlink BP for the terminal according to the maximum bandwidth capability supported by the terminal, in order to save energy and support multi-subcarrier spacing, the bandwidths of the uplink BP and the downlink BP configured for the terminal by the network device are generally smaller than or equal to the maximum bandwidth capability supported by the terminal. For example, the maximum bandwidth capability supported by the terminal may be 100MHz, and the bandwidths of the uplink BP and the downlink BP configured by the network device for the terminal are less than or equal to 100MHz, for example, may be 10MHz and 20MHz.

The bandwidths of the uplink BP in at least one uplink BP configured by the network equipment for the terminal can be the same or different; likewise, bandwidths of the downlink BPs in at least one downlink BP configured by the network device for the terminal may be the same or different; further, in the present application, the bandwidth relationship between the uplink BP and the downlink BP configured by the network device side for the terminal is not limited.

In step 302, the network device sends information of the uplink BP and the downlink BP configured for the terminal to the terminal.

In particular, the network device may transmit information of the uplink BP and the downlink BP configured for the terminal to the terminal through signaling, such as RRC. The information of the uplink BP and the downlink BP comprises bandwidths, frequency domain positions and subcarrier intervals of the uplink BP and the downlink BP. In the present application, the bandwidth, the frequency domain position and the subcarrier spacing of the BP may uniquely determine the BP, and the frequency domain position of the BP may be the lowest frequency domain position, or the central frequency domain position, or the highest frequency domain position of the BP, which is not specifically limited.

In a possible implementation manner, the network device configures an uplink BP and a downlink BP for the terminal, and may number the uplink BP and the downlink BP, so in step 302, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include bandwidths, frequency domain positions, subcarrier intervals, numbers, and the like of the uplink BP and the downlink BP.

In the present application, there are various specific numbering modes of the uplink BP and the downlink BP, and a possible numbering mode will be described below by taking a network device as an example to configure 3 uplink BPs and 3 downlink BPs (where the subcarrier interval of 2 uplink BPs in 3 uplink BPs is 15kHz, the subcarrier interval of 1 uplink BP is 30kHz, the subcarrier interval of 2 downlink BPs in 3 downlink BPs is 15kHz, and the subcarrier interval of 1 downlink BP is 30 kHz).

Mode one: the uplink BP and the downlink BP are collectively numbered, and in this way, the uplink BP and the downlink BP are not distinguished.

Fig. 4a is a schematic diagram of a first possible numbering corresponding to the mode, as shown in fig. 4a, where the numbers of the uplink BP and the downlink BP configured by the network device for the terminal are respectively 0, 1, 2, 3, 4, and 5.

In the numbering scheme in fig. 4a, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include bandwidths, frequency domain locations, subcarrier spacing and numbers of the uplink BP and the downlink BP.

Considering that the uplink BP and the downlink BP configured by the network device for the terminal have different subcarrier spacings, in order to facilitate the correspondence between the same subcarrier-spacing bandwidth portions, the BP may be numbered according to the subcarrier spacing of the BP, for example: BP with the same subcarrier spacing is uniformly numbered, BP with different subcarrier spacing is independently numbered. Fig. 4b is a schematic diagram of a second possible numbering corresponding to the first mode, as shown in fig. 4b, where BP with a subcarrier spacing of 15kHz between an uplink BP and a downlink BP configured by the network device is uniformly numbered 0, 1, 2, and 4, and BP with a subcarrier spacing of 30kHz is uniformly numbered 0 and 1.

In the numbering manner in fig. 4b, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include bandwidths, frequency domain positions, numbers, and subcarrier intervals of the uplink BP and the downlink BP.

Mode two: the upstream BP and the downstream BP are independently numbered, and in this way, the upstream BP and the downstream BP are distinguished.

Fig. 4c is a schematic diagram of a first possible numbering corresponding to the second mode, as shown in fig. 4c, where the numbers of the uplink BPs configured by the network device for the terminal are 0, 1, and 2, respectively; the numbers of the downlink BP are respectively 0, 1 and 2.

In the numbering manner in fig. 4c, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include bandwidths, frequency domain positions, numbers, subcarrier intervals, and uplink and downlink identifiers of the uplink BP and the downlink BP. The uplink and downlink identifier is used to identify that the BP is an uplink BP or a downlink BP, and the uplink and downlink identifier may have various expression forms, for example, may be represented by

bits

0 and 1, where 0 represents an uplink and 1 represents a downlink.

Fig. 4d is a schematic diagram of a second possible numbering corresponding to the second mode, as shown in fig. 4d, BP with a subcarrier spacing of 15kHz in an uplink BP configured by the network device for the terminal is uniformly numbered 0 and 1, and BP with a subcarrier spacing of 30kHz is uniformly numbered 0; BP with subcarrier spacing of 15kHz in downlink BP configured by network equipment is uniformly numbered 0 and 1, and BP with subcarrier spacing of 30kHz is uniformly numbered 0.

In the numbering manner in fig. 4d, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include bandwidths, frequency domain positions, numbers, uplink and downlink identifiers, and subcarrier intervals of the uplink BP and the downlink BP.

In another possible implementation manner, the network device configures an uplink BP and a downlink BP for the terminal, and may number Resource Blocks (RBs) of the uplink BP and the downlink BP, so in step 302, the information of the uplink BP and the downlink BP sent by the network device to the terminal may include the frequency domain positions, the subcarrier intervals, and the number of RBs of the uplink BP and the downlink BP.

In step 303, the network device activates an uplink BP and a downlink BP for the terminal, where the number of activated uplink BP and downlink BP is one or more respectively.

Here, the triggering condition of the network device for activating the uplink BP and the downlink BP for the terminal may determine that data transmission needs to be performed with the terminal for the network device, or may be other cases, which is not limited specifically.

In this application, there are various ways of numbering RBs of the activated uplink BP and the activated downlink BP, and in the following, a possible numbering manner will be described by taking a network device as a terminal to activate 2 uplink BPs and 2 downlink BPs (180 RBs in each uplink BP).

Mode one: RB unified numbering of uplink BP and downlink BP

In this case, the RB numbers in the 2 uplink BPs and the 2 downlink BPs activated for the terminal by the network device are 0 to 719.

Mode two: RB independent numbering for each BP

In this case, the RB number of each of the 2 uplink BPs and 2 downlink BPs activated by the network device for the terminal is 0 to 179.

Mode three: RB uniform number of uplink BP, RB uniform number of downlink BP

In this case, the network device activates 2 uplink BPs for the terminal, and the RB number of each of the 2 downlink BPs is 0 to 359.

In step 304, the network device notifies the terminal of the activated uplink BP and the activated downlink BP.

Specifically, if the network device adopts the numbering scheme shown in fig. 4a, in step 304, the network device may send the numbers of the activated uplink BP and the activated downlink BP to the terminal, and the terminal may determine the activated BP according to the numbers of the BP. If the network device adopts the numbering scheme shown in fig. 4b, in step 304, the network device may send the numbers of the activated uplink BP and the activated downlink BP and the subcarrier spacing to the terminal, and the terminal may determine the activated BP according to the numbers of the BPs and the subcarrier spacing. The other ways are similar and will not be described in detail.

In step 305, the network device sends indication information to the terminal on the first downlink BP, where the indication information is used to indicate the uplink BP.

The uplink BP indicated by the indication information is an uplink BP corresponding to the first downlink BP, and specifically may include a first uplink BP corresponding to an uplink scheduling grant (UL grant) in the first downlink BP and/or a second uplink BP corresponding to HARQ ACK of downlink data in the first downlink BP. The first uplink BP and the second uplink BP may be the same uplink BP, or may be different uplink BPs.

In a first possible scenario, the network device activates one of the upstream BPs configured for the terminal (e.g., upstream BP 1) and activates one of the downstream BPs configured for the terminal (e.g., downstream BP 1), so that the upstream BP1 and the downstream BP1 may be associated with each other to achieve data transmission.

For such a scenario, one possible implementation manner is that the network device indicates, through the indication information, that an uplink BP corresponding to the terminal downlink BP1 is the uplink BP1. In this scenario, since only the uplink BP1 and the downlink BP1 are activated, the terminal may default that the uplink BP1 and the downlink BP1 correspond to each other, so that another possible implementation manner is that the network device does not need to instruct, by using the indication information, the uplink BP corresponding to the downlink BP1 of the terminal, thereby saving signaling overhead.

In a second possible scenario, the network device activates multiple ones of the upstream BPs configured for the terminal (e.g., upstream BP1, upstream BP 2), and activates one of the downstream BPs configured for the terminal (e.g., downstream BP 1).

For such a scenario, one possible implementation manner is that the network device indicates, through the indication information, an uplink BP (for example, uplink BP 1) corresponding to the uplink scheduling grant in the terminal downlink BP1 and an uplink BP (for example, uplink BP 2) corresponding to the HARQ of the downlink data in the downlink BP 1. In this scenario, since only the downlink BP1 is activated, HARQ ACKs of downlink data received by the network device are HARQ ACKs of downlink data in the downlink BP1, and therefore, another possible implementation manner is that the network device indicates only an uplink BP corresponding to an uplink scheduling grant in the downlink BP1 of the terminal through the indication information, and does not need to indicate an uplink BP corresponding to HARQ of downlink data in the downlink BP1, that is, only an uplink BP corresponding to an uplink scheduling grant in the downlink BP1 is included in the uplink BP indicated by the indication information.

In a third possible scenario, the network device activates one of the upstream BPs configured for the terminal (e.g., upstream BP 1) and activates multiple ones of the downstream BPs configured for the terminal (e.g., downstream BP1, downstream BP 2).

For this scenario, taking downlink BP1 as an example, the network device indicates, through the indication information, that an uplink BP corresponding to the uplink scheduling grant in the terminal downlink BP1 is the uplink BP1 and an uplink BP corresponding to the HARQ ACK of the downlink data in the downlink BP1 is the uplink BP1. In this scenario, since only the downlink BP1 is activated, the terminal may default to transmit uplink scheduling data on the uplink BP1, and thus the network device may not need to instruct, through the indication information, the uplink BP corresponding to the uplink scheduling grant in the downlink BP1 of the terminal. The HARQ ACKs of the activated multiple downlink BPs may all be fed back on one and the same uplink BP.

In a fourth possible scenario, the network device activates a plurality of upstream BPs (e.g., upstream BP1, upstream BP 2) among the upstream BPs configured for the terminal, and activates a plurality of downstream BPs (e.g., downstream BP1, downstream BP 2) among the downstream BPs configured for the terminal.

For this scenario, since there are multiple active uplink BPs and downlink BPs, taking downlink BP1 as an example, the network device needs to instruct, by using the indication information, an uplink BP (for example, uplink BP 1) corresponding to the uplink scheduling grant in the downlink BP1 of the terminal and an uplink BP (for example, uplink BP 2) corresponding to the HARQ ACK of the downlink data in the downlink BP1, that is, the uplink BP indicated by the indication information includes an uplink BP corresponding to the uplink scheduling grant in the downlink BP1 and an uplink BP corresponding to the HARQ of the downlink data in the downlink BP1.

Optionally, in the present application, an uplink BP corresponding to an uplink scheduling grant in a downlink BP and an uplink BP corresponding to an HARQ ACK of downlink data may be predefined to be the same uplink BP.

In this application, in one possible implementation manner, the indication information may include information that uniquely identifies the uplink BP. Specifically, if the network device adopts the numbering scheme shown in fig. 4a, the indication information may include the number of the BP, and the terminal may determine the uplink BP corresponding to the number according to the number of the BP. If the network device adopts the numbering scheme shown in fig. 4b, the indication information may include the number of the BP and the subcarrier spacing, and the terminal may determine the uplink BP corresponding to the number of the BP and the subcarrier spacing according to the number of the BP and the subcarrier spacing. The other ways are similar and will not be described in detail.

Optionally, in the present application, the network device may also indicate, by an implicit method, an uplink BP corresponding to the uplink scheduling grant in the downlink BP. Specifically, when RB in multiple uplink BPs with the same subcarrier interval are uniformly numbered, the terminal device may determine an uplink BP corresponding to the uplink scheduling grant according to the number of the uplink resource allocated in the uplink scheduling grant. For example, the network device activates two uplink BPs, namely an uplink BP1 and an uplink BP2, where the RB number in the uplink BP1 is 0-20, the RB number in the uplink BP2 is 21-50, and the number of the uplink resource allocated in the uplink scheduling grant is 2-12, and then the terminal may determine that the uplink BP corresponding to the uplink scheduling grant is the uplink BP1 according to the number of the uplink resource allocated in the uplink scheduling grant.

In one possible implementation, the indication information may include a time pattern, where the time pattern indicates a correspondence between the activated downstream BP and the activated upstream BP in a set period of time. The time length of the set time period can be set according to the needs, for example, can be 5ms; the correspondence between the downstream BP and the upstream BP may include correspondence between one or more downstream BP and one or more upstream BP, for example, downstream BP1 and upstream BP1, and upstream BP2 correspond to each other. After receiving the time mode, the terminal can determine that the uplink BP corresponding to the downlink BP1 is the uplink BP1 and the uplink BP2 in the next set time period (5 ms), and when the time period exceeds 5ms, the corresponding relationship between the downlink BP1 and the uplink BP2 fails.

In step 306, the terminal receives the indication information sent by the network device on the first downlink BP.

In step 307, the terminal sends an uplink signal at the uplink BP indicated by the indication information according to the indication information.

In step 308, the network device receives an uplink signal sent by the terminal on the uplink BP.

For the steps 306 to 308, the terminal receives the indication information, and if it is determined that the uplink BP indicated by the indication information includes a first uplink BP corresponding to the uplink scheduling grant in the first downlink BP, the terminal sends uplink scheduling data on the first uplink BP; correspondingly, the network device receives uplink scheduling data on the first uplink BP. If the terminal determines that the uplink BP indicated by the indication information comprises a second uplink BP corresponding to the HARQ ACK of the downlink data in the first downlink BP, the terminal sends the HARQ ACK of the downlink data on the second uplink BP; correspondingly, the network device receives the HARQ ACK of the downlink data on the second uplink BP. If the terminal determines that the uplink BP indicated by the indication information comprises a first uplink BP corresponding to uplink scheduling grant in a first downlink BP and a second uplink BP corresponding to HARQ ACK of downlink data in the first downlink BP, sending uplink scheduling data on the first uplink BP and sending HARQ ACK of the downlink data on the second uplink BP; correspondingly, the network device receives uplink scheduling data on the first uplink BP and HARQ ACK of downlink data on the second uplink BP.

In this application, the uplink signal sent by the terminal at the uplink BP indicated by the indication information may also be an SRS. In a time division duplex (Time Division Duplexing, TDD) system, if the bandwidths and frequency domain positions of the uplink BP and the first downlink BP are the same, based on channel reciprocity, the network device may obtain the channel quality of the first downlink BP according to the SRS sent by the terminal on the uplink BP. However, when the network device configures at least one downlink BP and at least one uplink BP for the terminal, for example, the first downlink BP corresponds to the uplink BP1, and the bandwidths and the frequency domain positions of the uplink BP1 and the first downlink BP are likely to be different, for example, the bandwidth of the first downlink BP is greater than the bandwidth of the uplink BP1, so that the network device cannot accurately obtain the channel quality of the first downlink BP according to the SRS received on the uplink BP 1.

Based on this, in step 307, when there is only one uplink BP, for example, uplink BP1, if the terminal determines that the bandwidth of the uplink BP1 is smaller than that of the first downlink BP, the terminal may expand the uplink BP1 so that the frequency domain range of the expanded uplink BP and the frequency domain range of the first downlink BP overlap maximally, and the expanded uplink BP is the uplink measurement BP. Optionally, the expansion mode of the uplink BP may be that if the lowest frequency domain position of the uplink BP is smaller than or equal to the lowest frequency domain position of the downlink BP, the highest frequency domain position of the uplink BP is made larger; if the highest frequency domain position of the uplink BP is greater than or equal to the highest frequency domain position of the downlink BP, the lowest frequency domain position of the uplink BP is made smaller; the maximum bandwidth of the uplink measurement BP is the maximum uplink bandwidth capability of the terminal device. As shown in fig. 5a and fig. 5b, fig. 5a is a schematic diagram of an extended uplink BP in the first case, and fig. 5b is a schematic diagram of an extended uplink BP in the second case.

When there are two or more uplink BPs, for example, uplink BP1 and uplink BP2, if the terminal determines that the frequency domain ranges of the two or more uplink BPs do not cover the frequency domain range of the first downlink BP, it may select one uplink BP that overlaps the frequency domain range of the first downlink BP most or select an uplink BP associated with a plurality of frequency domain ranges that overlap the frequency domain range of the first downlink BP most from the two or more uplink BPs, and extend the one or more uplink BPs, so that the frequency domain range of the extended measured uplink BP and the frequency domain range of the first downlink BP overlap maximally, and the maximum bandwidth of the extended uplink measured BP is the maximum uplink bandwidth capability of the terminal device.

After the terminal obtains the uplink measurement BP, the network device sends the SRS on the uplink measurement BP, and in step 308, after receiving the SRS sent by the terminal on the uplink measurement BP, the network device receives the SRS, so as to obtain the channel quality of the uplink measurement BP, and based on channel reciprocity, the network device may obtain the channel quality similar to the first downlink BP.

It should be noted that: in the present application, if the terminal device determines that the difference between the frequency domain range of the first downlink BP and the frequency domain range of the uplink BP corresponding to the first downlink BP is smaller than the preset threshold, the terminal device may directly transmit the SRS at the uplink BP corresponding to the first downlink BP without expanding the uplink BP corresponding to the first downlink BP.

Further, consider that an uplink measurement BP may have frequency domain resources that coincide with other uplink BPs. As shown in fig. 6, the uplink measurement BP and the uplink BP3 have coincident frequency domain resources. The uplink BP3 may be an uplink BP activated by the network device as a terminal, or may be an uplink BP activated by the network device as another terminal, so that if the terminal transmits the SRS on the uplink measurement BP and simultaneously transmits the uplink data information and the uplink control information on the frequency domain resource where the uplink BP3 overlaps with the uplink measurement BP, interference between signals may be generated, and therefore, in the present application, the priority of the frequency domain resource where the SRS, the uplink control information, and the uplink control information overlap with the uplink measurement BP3 may be set so as to avoid interference between signals, specifically, the priority of the uplink control information is higher than the priority of the SRS, the priority of the SRS is higher than the priority of the uplink data information, and further, the priority of the SRS transmitted on the uplink BP3 is higher than the priority of the SRS transmitted on the uplink measurement BP. Accordingly, the network device can adjust the timing at which the terminal transmits the SRS, the uplink control information, and the uplink data information based on the set priority.

Fig. 7 is a communication method according to another embodiment of the present application, as shown in fig. 7, including:

in step 701, the network device configures at least one uplink BP and at least one downlink BP for the terminal.

For example, the network device configures 3 uplink BPs (uplink BP1, uplink BP2, uplink BP3, respectively) and 3 downlink BPs (downlink BP1, downlink BP2, downlink BP3, respectively) for the terminal.

In this application, the network device configures one or more uplink BPs and one or more downlink BPs for the terminal, and one possible implementation manner is that the network device configures a correspondence between the uplink BPs and the downlink BPs at the same time, where the case corresponds to executing step 702. Such as configuring at least one first upstream bandwidth portion BP associated with the first downstream bandwidth portion BP; and/or configuring at least one second downstream BP associated with a second upstream BP; as such, the base station performs data transmission on the first downlink BP and at least one first uplink bandwidth portion BP associated with the first downlink BP; and/or the base station performs data transmission on the second uplink BP and at least one second downlink BP associated with the second uplink BP.

One possible implementation manner is that the network device does not configure the correspondence between the upstream BP and the downstream BP, where this case corresponds to step 711.

Step 702, configuring a correspondence between an uplink BP and a downlink BP. The correspondence between the uplink BP and the downlink BP may include any one or any combination of the following: one uplink BP corresponds to one downlink BP, one uplink BP corresponds to a plurality of downlink BPs, a plurality of uplink BPs corresponds to one downlink BP, a plurality of uplink BPs corresponds to a plurality of downlink BPs, and the specific limitation is not imposed.

For example, the correspondence between the uplink BP and the downlink BP configured by the network device is: the uplink BP1 corresponds to the downlink BP1, BP2, and the uplink BP2, the uplink BP3 corresponds to the downlink BP3.

In step 703, the network device sends the bandwidths, the frequency domain positions and the subcarrier intervals of the uplink BP and the downlink BP configured for the terminal device, and the correspondence between the uplink BP and the downlink BP to the terminal. Alternatively, the network device may send the correspondence between the uplink BP and the downlink BP to the terminal on the common bandwidth portion.

In this application, if the network device determines that data transmission needs to be performed with the terminal, the network device may activate the uplink BP and the downlink BP for the terminal, specifically, because in step 702, the network device configures a correspondence between the uplink BP and the downlink BP, so that the network device may activate the uplink BP and the downlink BP in pairs according to the correspondence between the uplink BP and the downlink BP, for example, if the uplink BP1 is associated with the downlink BP2, then activate the uplink BP1 and the downlink BP1 at the same time, and in this case, correspondingly execute step 704; alternatively, the upstream BP and the downstream BP activated by the network device may not be paired, for example, the upstream BP1 is associated with the downstream BP2, the upstream BP1 and the downstream BP2 are activated, and the upstream BP1 is activated, where step 707 is correspondingly performed.

In step 704, the network device activates the uplink BP and the downlink BP according to the correspondence between the uplink BP and the downlink BP.

And transmitting at least one uplink scheduling grant on the first downlink BP, wherein the uplink grant indicates scheduling information of at least one first uplink BP associated with the first downlink BP, and the base station receives uplink data on the first uplink BP. For example, one downlink BP is associated with two uplink BPs, and then one scheduling grant can be sent in the downlink BP, where the scheduling grant is common to the two uplink BPs, and the two uplink BPs are jointly numbered, and one data block of the uplink can be mapped to the two uplink BPs; two scheduling grants may be included in the downlink BP, where the two scheduling grants correspond to different uplink BPs, and one data block of an uplink is mapped to one uplink BP.

At least one HARQ feedback information is received on the second uplink BP, the HARQ feedback information corresponding to at least one HARQ of a second downlink BP associated with the second uplink BP. For example, one uplink BP is associated with two downlink BPs, one downlink data block is mapped on one downlink BP, so that the HARQ information of the two downlink BPs can be fed back on the uplink BP in a combined manner, or one downlink database is mapped on the two downlink BPs, and the HARQ information transmitted by the data block is sent on the uplink BP.

The first downlink BP and the first uplink BP associated with the first downlink belong to the same service cell.

Step 705, the network device notifies the terminal of the activated uplink BP and the activated downlink BP. For example, the network device notifies the terminal of the activated uplink BP1 and downlink BP 1.

In step 706, the network device and the terminal perform data transmission on the uplink BP1 and the downlink BP 1.

In step 707, the network device activates an upstream BP and a downstream BP, where the activated upstream BP and downstream BP are not paired.

In step 708, the network device notifies the terminal of the activated uplink BP and the activated downlink BP. For example, the network device notifies the terminal of the activated uplink BP1, uplink BP2, and downlink BP3.

In step 709, the network device sends indication information to the terminal, where the indication information indicates a correspondence between the activated uplink BP and the downlink BP, for example, indicates that the indication information corresponds to the uplink BP1 and the downlink BP3.

In step 710, the network device and the terminal perform data transmission on the uplink BP1 and the downlink BP3.

In step 711, the network device sends the bandwidths, the frequency domain positions and the subcarrier intervals of the uplink BP and the downlink BP configured for the terminal to the terminal.

In step 712, the network device activates the upstream BP and the downstream BP, e.g., activates upstream BP1, upstream BP2, and downstream BP3.

In step 713, the network device notifies the terminal of the activated upstream BP and downstream BP.

In step 714, the network device sends indication information to the terminal, where the indication information indicates a correspondence between the activated uplink BP and the downlink BP, for example, indicates that the indication information corresponds to the uplink BP1 and the downlink BP 3.

In step 715, the network device and the terminal perform data transmission on the uplink BP1 and the downlink BP 3.

It should be noted that, in the foregoing steps 509 and 514, the network device sends indication information to the terminal, and in one possible implementation manner, the network device may send indication information to the terminal on the activated downlink BP, for example, the network device activates uplink BP1, uplink BP2 and downlink BP3, and may send indication information to the terminal on the downlink BP3, where the indication information is used to indicate the uplink BP, and the uplink BP indicated in the indication information is the uplink BP associated with the downlink BP 3. The detailed implementation is described with reference to fig. 2 and 3 above.

In another possible implementation manner, the network device may send indication information to the terminal on the common bandwidth portion, where the indication information may be RRC information and may be downlink control information, and in this case, the indication information is used to indicate a correspondence between an uplink BP and a downlink BP.

It should be noted that the method described in the present application can be applied to at least TDD and frequency division duplex (Frequency Division Duplexing, FDD) systems.

Example two

In the prior art, the network device may instruct the terminal to switch between multiple bandwidth parts in an activation/deactivation manner, that is, the terminal may transmit data on the bandwidth part in an activation state, and correspondingly, the terminal may not transmit data on the bandwidth part in a deactivation state. When the network equipment configures the uplink bandwidth part and the downlink bandwidth part for the terminal, the uplink bandwidth part and the downlink bandwidth part are respectively and independently configured, and correspondingly, when the network equipment activates/deactivates the uplink bandwidth part and the downlink bandwidth part for the terminal, the uplink bandwidth part and the downlink bandwidth part are respectively and independently activated/deactivated. If the terminal uses a time division duplex (Time Division Duplexing, TDD) mode to communicate, because the network device activates/deactivates the uplink bandwidth portion and the downlink bandwidth portion for the terminal independently, when the network device activates the uplink bandwidth portion and the downlink bandwidth portion of different center frequency points for the terminal, the terminal needs to adjust the transceiver module in the terminal to switch between different center frequency points when receiving data and transmitting data, thereby causing a great deal of time to be wasted when the terminal switches between receiving data and transmitting data, and reducing the working efficiency of the terminal.

Based on this, a second embodiment of the present application provides a communication method, which is used to solve the problem that a terminal needs to switch between uplink and downlink different center frequency points. The method comprises the following steps: the network equipment sends configuration information to the terminal, wherein the configuration information is used for configuring the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource, correspondingly, the terminal receives the configuration information from the network equipment and configures the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource; in this way, the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource have the same center frequency point, and the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource are in different transmission directions, so that the terminal can use the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource to perform data transmission with the network device, and the terminal does not need to switch between different center frequency points.

In this application, the frequency domain resource may specifically refer to a bandwidth portion, i.e., BP or BWP. The transmission direction includes an uplink transmission direction and a downlink transmission direction. The frequency domain resource used for downlink transmission is a downlink frequency domain resource, and the frequency domain resource used for uplink transmission is an uplink frequency domain resource. The terminal may support simultaneous activation of multiple frequency domain resources in one transmission direction, or may support simultaneous activation of only one frequency domain resource, which will be described below by taking the terminal as an example.

There are various implementations of the network device sending the configuration information to the terminal, for example, the configuration information is carried by signaling or message, for example, the network device may send the configuration information through RRC signaling or DCI. The configuration information may include an association relationship between a plurality of uplink frequency domain resources and a plurality of downlink frequency domain resources, where one uplink frequency domain resource may be associated with one downlink frequency domain resource, or may be associated with a plurality of downlink frequency domain resources; likewise, one downlink frequency domain resource may be associated with one uplink frequency domain resource, or may be associated with a plurality of downlink frequency domain resources. The association relationship may be expressed in various forms, for example, in the form of a data table, see table 1.

Table 1: example of association relationship

As can be seen from table 1, the uplink frequency domain resource 1 and the downlink frequency domain resource 1 are a group of frequency domain resources associated with each other; the uplink frequency domain resource 2, the uplink frequency domain resource 3 and the downlink frequency domain resource 3 are a group of frequency domain resources which are mutually related; the uplink frequency domain resource N, the downlink frequency domain resources M1 and … … and the downlink frequency domain resource MK are a group of frequency domain resources which are mutually related. Each set of interrelated frequency domain resources has the same center frequency point.

If the first frequency domain resource is an uplink frequency domain resource, the first frequency domain resource may be any uplink frequency domain resource in table 1; if the first frequency domain resource is a downlink frequency domain resource, the first frequency domain resource may be any downlink frequency domain resource in table 1. For example, the first frequency domain resource is downlink frequency domain resource 1, and accordingly, the frequency domain resource associated with the first frequency domain resource is uplink frequency domain resource 1. Since the frequency domain resource associated with the first frequency domain resource may be one frequency domain resource or may be multiple frequency domain resources, the following description will specifically describe the two possible cases respectively.

Case one: the frequency domain resource associated with the first frequency domain resource is one frequency domain resource, namely a second frequency domain resource.

FIG. 8 is a flow chart corresponding to the first situation, as shown in FIG. 8, comprising:

in step 801, the network device generates configuration information, where the configuration information is used to configure the first frequency domain resource and the second frequency domain resource.

In step 802, the network device sends configuration information to the terminal.

In step 803, the terminal receives configuration information from the network device.

In step 804, the network device sends first indication information to the terminal, where the first indication information is used to indicate to activate the first frequency domain resource.

In step 805, the terminal receives first indication information from the network device.

Step 806, if the terminal determines that there are the third frequency domain resource and the fourth frequency domain resource that have been activated, it determines whether the third frequency domain resource has the same center frequency point as the first frequency domain resource, if so, step 807 is executed, and if not, step 808 is executed.

The third frequency domain resource and the first frequency domain resource are in the same transmission direction, the third frequency domain resource and the fourth frequency domain resource are in different transmission directions, and the third frequency domain resource and the fourth frequency domain resource have the same center frequency point.

In step 807, the terminal activates the first frequency domain resource and deactivates the third frequency domain resource.

Here, the terminal may perform data transmission with the network device using the activated first frequency domain resource and the fourth frequency domain resource.

In step 808, the terminal activates the first frequency domain resource and the second frequency domain resource, and deactivates the third frequency domain resource and the fourth frequency domain resource.

Here, the terminal may perform data transmission with the network device using the activated first frequency domain resource and the second frequency domain resource.

It should be noted that the foregoing description and the step numbers are only one exemplary representation of the execution flow of the present application, and are not limited in particular.

And a second case: the frequency domain resources associated with the first frequency domain resource are a plurality of frequency domain resources.

Fig. 9 is a flow chart corresponding to the second case, as shown in fig. 9, including:

in step 901, the network device generates configuration information, where the configuration information is used to configure the first frequency domain resource and a frequency domain resource associated with the first frequency domain resource.

In step 902, the network device sends configuration information to the terminal.

In step 903, the terminal receives configuration information from the network device.

In step 904, the network device sends first indication information to the terminal, where the first indication information is used to indicate to activate the first frequency domain resource.

In step 905, the terminal receives first indication information from a network device.

Step 906, if it is determined that the third frequency domain resource and the fourth frequency domain resource already activated exist, the terminal determines whether the third frequency domain resource and the first frequency domain resource have the same center frequency point, if yes, step 907 is executed, and if not, step 910 is executed.

In step 907, the terminal activates the first frequency domain resource and deactivates the third frequency domain resource.

Step 908, the network device sends second indication information to the terminal, where the second indication information is used to indicate to activate the second frequency domain resource;

step 909, the terminal receives the second indication information from the network device;

in step 910, the terminal activates the first frequency domain resource and the second frequency domain resource, and deactivates the third frequency domain resource and the fourth frequency domain resource.

In this case, since the frequency domain resources associated with the first frequency domain resource are plural, the base station needs to use the second indication information to indicate, and the base station can indicate according to its own scheduling requirement. This further increases the flexibility of scheduling, helping to increase the spectral efficiency of the system.

It should be noted that: (1) The above description and step numbers are only one exemplary representation of the execution flow of the present application, and are not particularly limited, for example, step 908 and step 909 may also be performed before step 907, where the second indication information may be ignored because the terminal determines that the frequency domain resource associated with the first frequency domain resource does not need to be activated. (2) In this application, the identification of the frequency domain resource may be the number of the frequency domain resource, and in step 910, the terminal may also activate the frequency domain resource with the smallest number (for example, the second frequency domain resource) directly according to the number of the frequency domain resource associated with the first frequency domain resource, where in this case, the network device does not need to send the second indication information to the terminal.

In the above-described procedures of fig. 8 and fig. 9, after the network device sends the configuration information to the terminal, it is necessary to send first indication information (and second indication information) to the terminal to instruct the terminal to activate the corresponding frequency domain resource. In the present application, the default activated frequency domain resource may be predefined in the configuration information, for example, the default activated frequency domain resource is the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource, and if the frequency domain resource associated with the first frequency domain resource is a plurality of frequency domain resources, one of the plurality of frequency domain resources may be predefined as the default activated frequency domain resource. In this way, after receiving the configuration information, the terminal directly activates the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource. Specifically, the terminal may activate the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource immediately after receiving the configuration information, or the terminal may activate the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource after waiting for a set period of time after receiving the configuration information, or the terminal may also activate the first frequency domain resource and the frequency domain resource associated with the first frequency domain resource according to a set period.

Example III

An embodiment of the present application provides a communication method, including: the terminal receives third indication information from the network equipment, wherein the third indication information is used for indicating to activate the first frequency domain resource pair; and the terminal activates the first frequency domain resource pair according to the third indication information. Because the first frequency domain resource pair comprises the uplink frequency domain resource and the downlink frequency domain resource which are mutually related, the uplink frequency domain resource and the downlink frequency domain resource can be jointly activated, and the design of signaling is effectively simplified.

In this application, the frequency domain resource may specifically refer to a bandwidth portion, i.e., BP or BWP. The transmission direction includes an uplink transmission direction and a downlink transmission direction. The frequency domain resource used for downlink transmission is a downlink frequency domain resource, and the frequency domain resource used for uplink transmission is an uplink frequency domain resource. The uplink frequency domain resource and the downlink frequency domain resource which are associated with each other form a frequency domain resource pair, specifically, a frequency domain resource pair may include one uplink frequency domain resource and a plurality of downlink frequency domain resources, or may also include a plurality of uplink frequency domain resources and one downlink frequency domain resource, or may also include a plurality of uplink frequency domain resources and a plurality of downlink frequency domain resources, or may also include one uplink frequency domain resource and one downlink frequency domain resource, which is not specifically limited. The terminal may support simultaneous activation of multiple frequency domain resource pairs, or may support simultaneous activation of only one frequency domain resource pair, which is described below by taking the terminal as an example.

Fig. 10 is a flow chart corresponding to a communication method provided in the present application, as shown in fig. 10, where the method includes:

in step 1001, the network device generates third indication information, where the third indication information is used to indicate activation of a first frequency domain resource pair, and the first frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource that are associated with each other.

The third indication information may include an identifier of the first frequency domain resource pair, where the identifier of the first frequency domain resource pair may be a number of the first frequency domain resource pair or other information for uniquely identifying the first frequency domain resource pair, and is not specifically limited.

Step 1002, the network device sends the third indication information to the terminal.

Here, the network device may send the third indication information in various manners, for example, by using downlink control information (downlink control information, DCI), where the DCI may be DCI for scheduling downlink data or DCI for scheduling uplink data.

In step 1003, the terminal receives third indication information from the network device.

After receiving the third indication information, the terminal obtains the identification of the first frequency domain resource pair through analysis.

And step 1004, activating the first frequency domain resource pair according to the third indication information by the terminal.

Here, the terminal activates uplink frequency domain resources and downlink frequency domain resources in the first frequency domain resource pair, and uses the activated uplink frequency domain resources and downlink frequency domain resources to perform data transmission with the network device.

In the application, the network equipment and the terminal related to the above step flow store at least one identifier of a frequency domain resource pair and at least one identifier of a frequency domain resource in the frequency domain resource pair; the first frequency domain resource pair is any one or any plurality of at least one frequency domain resource pair. A first possible implementation manner may be that the network device configures at least one frequency domain resource pair, and sends configuration information to the terminal, where the configuration information is used to configure the at least one frequency domain resource pair; correspondingly, the terminal determines the at least one frequency domain resource pair according to the configuration information; a second possible implementation manner may be to configure at least one frequency domain resource pair in the network device and the terminal in advance through a protocol. Further, the frequency domain resources in each frequency domain resource pair can have the same center frequency point, so that the terminal is effectively prevented from switching between uplink and downlink different center frequency points.

Further, after the step 1003, the method further includes: the terminal deactivates the second frequency domain resource pair; the second pair of frequency domain resources is an activated pair of frequency domain resources of the at least one pair of frequency domain resources other than the first pair of frequency domain resources. That is, since the terminal supports only one frequency domain resource pair to be activated at the same time, the terminal needs to deactivate the second frequency domain resource pair if it is determined that there is the activated second frequency domain resource pair before activating the first frequency domain resource pair.

One possible complete flow of the communication method provided in the present application is described below in connection with fig. 11. As shown in fig. 11, the method includes:

step 1101, the network device configures a plurality of frequency domain resource pairs, and sends configuration information to the terminal, where the configuration information is used to configure the plurality of frequency domain resource pairs.

The network device may send the configuration information to the terminal in various manners, for example, the configuration information is carried by signaling or message, for example, the network device may send the configuration information through RRC signaling or DCI. The configuration information may include an identification of a plurality of frequency domain resource pairs and an identification of frequency domain resources in the plurality of frequency domain resource pairs, see table 2, as an example of the configuration information.

Table 2: configuration information example

As can be seen from table 2, the uplink frequency domain resource 1 and the downlink frequency domain resource 1 are a group of frequency domain resources associated with each other, and form a frequency domain resource pair; the uplink frequency domain resource 2, the uplink frequency domain resource 3 and the downlink frequency domain resource 3 are a group of frequency domain resources which are mutually related to form a frequency domain resource pair; the uplink frequency domain resource N, the downlink frequency domain resources M1 and … … and the downlink frequency domain resource MK are a group of frequency domain resources which are mutually related to form a frequency domain resource pair.

In step 1102, the terminal receives configuration information, and determines the plurality of frequency domain resource pairs according to the configuration information.

Step 1103, the network device generates third indication information, and sends the third indication information to the terminal; the third indication information is used for indicating to activate a first frequency domain resource pair, and the first frequency domain resource pair is any one of a plurality of frequency domain resource pairs. The third indication information may include an identification of the first frequency domain resource pair.

Step 1104, the network device generates fourth indication information and sends the fourth indication information to the terminal; the fourth indication information is used for indicating to deactivate a second frequency domain resource pair, wherein the second frequency domain resource pair is an activated frequency domain resource pair of a plurality of frequency domain resource pairs except the first frequency domain resource pair. The fourth indication information may include an identification of the second frequency domain resource pair.

In step 1105, the terminal receives third indication information and fourth indication information from the network device, and activates the second frequency domain resource pair according to the fourth indication information, and activates the first frequency domain resource pair according to the third indication information.

It should be noted that the above step numbers are only an exemplary representation of the execution flow, for example, in other embodiments, step 1104 may be executed before step 1103, or step 1104 and step 1103 may be executed simultaneously, which is not limited specifically.

As can be seen from the above-described flows in fig. 10 and fig. 11, before the terminal activates the first frequency domain resource pair according to the third indication information, the terminal may deactivate the second frequency domain resource pair by receiving the fourth indication information sent by the network device, or may directly deactivate the second frequency domain resource pair, which is not specifically limited.

It should be noted that, in other possible implementations, the network device may only send deactivation indication information to the terminal to instruct the terminal to deactivate the corresponding frequency domain resource pair, so as to implement joint deactivation of the uplink frequency domain resource and the downlink frequency domain resource.

Based on the above first embodiment, the present application provides a first communication apparatus, which may be a network device or a chip inside the network device, for implementing the corresponding flow or steps in the method embodiments shown in fig. 2, 3 and 7. Referring to fig. 12, a communication apparatus 1200 may include: the transmission module 1201, the reception module 1202, and the processing module 1203, specifically, the processing module 1203 performs in combination with the transmission module 1201, the reception module 1202:

Based on the above first embodiment, the present application provides a second communication device, which may be a terminal or a chip inside the terminal, for implementing the corresponding flow or steps in the method embodiments shown in fig. 2, 3 and 7. Referring to fig. 13, a communication apparatus 1300 may include: the transmission module 1301, the reception module 1302, and the processing module 1303, specifically, the processing module 1303 performs in conjunction with the transmission module 1301, the reception module 1302:

Based on the second embodiment, the present application provides a communication device, which may be a network device or a terminal, for implementing the corresponding flow or steps in the method embodiments shown in fig. 8 and fig. 9. The communication device may include corresponding functional modules for performing the method flow described in the second embodiment, and may include a sending module, a receiving module, and a processing module, for example.

Based on the third embodiment, the present application provides a communication device, which may be a network device or a terminal, for implementing the corresponding flow or steps in the method embodiments shown in fig. 10 and fig. 11. The communication device may include a corresponding functional module, which is configured to perform the method flow described in the third embodiment, and may include a sending module, a receiving module, and a processing module, for example.

It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.

The integrated modules, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Based on the first embodiment, the present application provides a third communication apparatus, which may be a network device or a chip inside the network device, for implementing the corresponding flow or steps in the method embodiments shown in fig. 2, 3 and 7. The communication device has the function of the communication device 1200 shown in fig. 12. Referring to fig. 14, the communication device 1400 includes: a communication module 1401, a processor 1402, a bus 1403, a memory 1404;

the communication module 1401 is configured to perform communication interaction with other devices, specifically, to send indication information to a terminal, where the indication information is used to indicate at least one second BP associated with the first BP; and transmitting signals with the terminal on the first BP and the at least one second BP.

The communication module 1401 may be an RF circuit, a WiFi module, a communication interface, a bluetooth module, or the like.

The processor 1402 may be configured to implement the functions of the processing module 1203 in fig. 12, for example, including: and determining the indication information.

Optionally, the communication device 1400 may further include: the memory 1404 is used for storing programs and the like. In particular, the program may comprise program code comprising instructions. The memory 1404 may include RAM or may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The processor 1402 executes the application programs stored in the memory 1404 to achieve the above-described functions.

Based on the first embodiment, the present application provides a fourth communication device, which may be a terminal or a chip inside the terminal, for implementing the corresponding flow or steps in the method embodiments shown in fig. 2, 3 and 7. The communication device has the function of the communication device 1300 shown in fig. 13. Referring to fig. 15, the communication apparatus 1500 includes: a communication module 1501, a processor 1502, a bus 1503, and a memory 1504;

the communication module 1501 is configured to perform communication interaction with other devices, specifically, to receive indication information sent by a network device, where the indication information is used to indicate at least one second BP associated with a first BP; and signaling with the network device on the first BP and the at least one second BP.

The communication module 1501 may be an RF circuit, a WiFi module, a communication interface, a bluetooth module, etc.

The processor 1502 may be configured to implement the functions of the processing module 1303 shown in fig. 13, for example, including: and analyzing the indication information.

Optionally, the communication apparatus 1500 may further include: the memory 1504 is used for storing programs and the like. In particular, the program may comprise program code comprising instructions. The memory 1504 may include RAM, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 1502 executes the application program stored in the memory 1504 to realize the functions described above.

Based on the second embodiment and the third embodiment, the embodiments of the present application provide a communication device, which may be a terminal or a network device, for implementing the corresponding flow or steps in the method embodiments shown in fig. 8, 9, 10 or 11. The communication device includes: a communication module, a processor;

and the communication module is used for carrying out communication interaction with other equipment. The communication module may be an RF circuit, a WiFi module, a communication interface, a bluetooth module, etc.

The processor is used for realizing the functions of the processing module.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and the equivalents thereof, the present application is intended to encompass such modifications and variations.

Claims

1. A communication method, wherein the method is applied to a terminal, the method comprising:

receiving indication information from network equipment, wherein the indication information is used for indicating activation of a first frequency domain resource pair, the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related, and the uplink frequency domain resource and the downlink frequency domain resource have the same center frequency point; the uplink frequency domain resource is an uplink bandwidth part, and the downlink frequency domain resource is a downlink bandwidth part;

And activating the first frequency domain resource pair according to the indication information.

2. The method of claim 1, wherein prior to receiving the indication information from the network device, further comprising:

receiving configuration information from the network device, the configuration information being used to configure at least one frequency domain resource pair; the first frequency domain resource pair is any one or a plurality of frequency domain resource pairs in the at least one frequency domain resource pair;

and determining the at least one frequency domain resource pair according to the configuration information.

3. The method of claim 2, further comprising, after receiving the indication information from the network device:

deactivating the second frequency domain resource pair; the second pair of frequency domain resources is an activated pair of frequency domain resources of the at least one pair of frequency domain resources other than the first pair of frequency domain resources.

4. A method according to any of claims 1 to 3, wherein the indication information comprises an identification of the first frequency domain resource pair.

5. A method of communication, the method being applied to a network device, the method comprising:

generating indication information, wherein the indication information is used for indicating to activate a first frequency domain resource pair, the first frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource which are mutually related, and the uplink frequency domain resource and the downlink frequency domain resource have the same center frequency point; the uplink frequency domain resource is an uplink bandwidth part, and the downlink frequency domain resource is a downlink bandwidth part;

And sending the indication information to the terminal.

6. The method of claim 5, wherein the method further comprises:

transmitting configuration information to a terminal, wherein the configuration information is used for configuring at least one frequency domain resource pair; the first frequency domain resource pair is any one or a plurality of frequency domain resource pairs in the at least one frequency domain resource pair.

7. The method according to claim 5 or 6, wherein the indication information comprises an identification of the first frequency domain resource pair.

8. A terminal, characterized in that the terminal comprises one or more processing modules; the one or more processing modules are configured to control the terminal to perform the method of any of claims 1 to 4.

9. A network device, the network device comprising one or more processing modules; the one or more processing modules are configured to control the network device to perform the method of any of claims 5 to 7.

10. A computer-readable storage medium, characterized in that the storage medium stores instructions which, when run on a computer of a terminal, cause the computer to perform the method of any of claims 1 to 4.

11. A computer readable storage medium storing instructions which, when run on a computer of a network device, cause the computer to perform the method of any one of claims 5 to 7.